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View Full Version : Lighting Up The Past And The Future



emilyk007
2007-May-02, 07:04 PM
My father used to say that every problem can be solved by either a bigger hammer or more light. While the politicians swing their proverbial hammers, scientists are lighting up, not just the cosmic future, but also our cultural past.

Much of what we know about extrasolar objects comes to us because of astronomical spectroscopy - ostensibly, the reading of light. The composition of bodies such as meteors and exo-planets is determined by studying the light reflected by the planets, and the absorption lines, that minerals and gases create in that light.

But spectral analysis has uses other than trying to find Tom Cruise's long lost Zolob.

Full article: http://www.orato.com/node/2286